Idon't know how to solve this:
in a pair of complementary angles, one angle measures 18* less than three times the other angle. find the measure of each angle.

18, 72

Step-by-step explanation:

Two angles are complementary if they sum up to 90°. Call them . From the second part,

The second angle is

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

$30.32

step-by-step explanation:

65.00*.12=2.80

65.00-2.80=57.20

57.20*1.06=60.632

60.632/2=30.316